ISL9214AIRZ Intersil, ISL9214AIRZ Datasheet - Page 7

• Manufacturer Part Number: ISL9214AIRZ
• Description: IC BATTERY CHRGR LI-ION 10-DFN
• Manufacturer: Intersil

Specifications of ISL9214AIRZ

• Function: Charge Management
• Battery Type: Lithium-Ion (Li-Ion), Lithium-Polymer (Li-Pol)
• Voltage - Supply: 4.3 V ~ 24 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 10-VFDFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Typical Operating Performance
Functional Pin Description
CRDL (Pin 1)
Cradle input. This pin is usually connected to a cradle power
input. The maximum input voltage is 28V. The charge
current from this pin is programmable with the ICDL pin up to
1A. When this pin is connected to a power source, no charge
current is drawn from the USB pin. A 1µF or larger value
ceramic capacitor is recommended for decoupling.
USB (Pin 2)
USB input. This pin is usually connected to a USB port
power connector and other sources that are also acceptable.
The charge current from the USB pin is fixed at typically
380mA. A 1µF or larger value ceramic capacitor is
recommended for decoupling. It is also recommended to
have a 1Ω resistor in series with the decoupling capacitor to
prevent an over-shoot voltage when a USB cable is plugged
in.
PPR (Pin 3)
Power presence indication. An open-drain output pin, which
turns ON when either the USB input voltage or the CRDL
input voltage is above its POR level, regardless of the
charger is enabled or disabled, otherwise it turns OFF. This
pin provides a wake-up signal to a microprocessor when
either the cradle or the USB power is connected.
CHG (Pin 4)
Charge indication pin. An open-drain output, which turns ON
when the charge current is above programmable threshold,
otherwise it turns OFF.
EN (Pin 5)
Enable logic input. Connect to LOW or leave floating to
enable the charger.
FIGURE 9. CRADLE INPUT QUIESCENT CURRENT vs INPUT
800
700
600
500
400
300
200
100
0
0
I
I
OUT
OUT
VOLTAGE
= 0mA
= 0mA
5
TEMPERATURE (°C)
10
7
ENABLED
ENABLED
15
DISABLED
DISABLED
20
The test conditions for the Typical Operating Performance are: V
R
ICDL
= 12.4kΩ, R
25
ISL9214A
IMIN
= 10.0kΩ, V
IMIN (Pin 6)
IMIN is the programmable input for the end-of-charge
current. IMIN is calculated by using Equation 1:
Where R
USB charging.
USBON (Pin 7)
The USBON pin is a control input to turn off the USB charge
function if desired. Connect to LOW or leave floating to turn
off USB charge.
GND (Pin 8)
System ground.
ICDL (Pin 9)
The ICDL pin has two functions. The first function is to
program the cradle charge current during the
constant-current mode. The voltage of this pin is 1.22V
during the constant-current mode of the cradle charger. The
constant-current mode current is programmed by using
Equation 2:
where R
(see “Typical Applications” on page 3).
It is recommended that the charge current be programmed
in the range of 100mA to 1000mA.
The second function of the ICDL pin is to monitor the actual
charge current. The voltage of this pin, V
to the actual charge current, I
I
I
MIN
CDL
FIGURE 10. USB INPUT QUIESCENT CURRENT vs INPUT
=
=
800
700
600
500
400
300
200
100
---------------- -
R
----------------
R
6820
0
ICDL
550
ICDL
IMIN
IMIN
0
BAT
I
I
OUT
OUT
VOLTAGE
is the resistor in kΩ
is in kΩ. IMIN is applicable for both cradle and
= 3.7V, Unless Otherwise Noted. (Continued)
= 0mA
= 0mA
5
TEMPERATURE (°C)
10
(
mA
CHG
(
mA
)
,
.
connected to the ICDL pin
)
IN
ENABLED
ENABLED
15
= 5V, T
ICDL
DISABLED
DISABLED
, is proportional
A
20
= +25°C,
May 5, 2008
FN6698.0
(EQ. 1)
(EQ. 2)
25